| Attribute | Harley-Davidson AH Topper-Scooter 1964 × | Triumph Terrier 150 1954 × |
|---|---|---|
| General | ||
| Production from (year) | 1964 | 1954 |
| Make | Harley-Davidson | Triumph |
| Model | Harley-Davidson AH Topper-Scooter | Triumph Terrier 150 |
| Category | Scooter | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Fuel system | Carburettor | Carburettor. Amal |
| Displacement (cm³) | 164 | 150 |
| Power (kw) | - | 6.1 |
| Cooling system | - | Air |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 60 | 57 |
| Stroke (mm) | 58 | 58.5 |
| Fuel control | - | Overhead Valves (OHV) |
| Compression | 8.0:1 | 7.1:1 |
| Chassis | ||
| Front suspension | Leading link | - |
| Rear suspension | Swingarm with two extension springs | - |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Front tyre | - | 3-16 |
| Rear tyre | - | 3-16 |
| Seat | - | Dual |
| Wheels | - | Spoked |
| Performance | ||
| Top speed (km/h) | 74 | 80 |